Key facts
- Shops were looted in Frankfurt on Saturday night.
- Clashes and violence occurred in Berlin, Cologne, and Hamburg.
- Police used water cannon to disperse protesters in some cities.
- Demonstrators targeted emergency workers with fireworks, stones, and bottles.
- The protests were organized by Gen Z regelt.
- Hesse state interior minister Roman Poseck identified around 100 left-wing extremists in Frankfurt.